Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Reexamination Certificate
2006-08-31
2008-12-16
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Positional servo systems
With particular 'error-detecting' means
C318S560000, C360S077020, C360S077070, C700S011000, C700S012000, C700S013000
Reexamination Certificate
active
07466101
ABSTRACT:
A positioning control device based on an observer control has a disturbance suppression function to which a disturbance suppression function is added without affecting the control characteristics of the observer. Models of an actuator and a disturbance model are separated, and for the disturbance model, state information is generated using an estimated gain determined from a disturbance model defined by a transfer function of which denominator is a numerator of a filter in which degrees of denominator and numerator for shaping a sensitivity function are the same, and the disturbance suppression value of the actuator is computed from the state information. The vibration of the head can be prevented adapting to a wide range of disturbance frequencies without affecting the control characteristics of the observer.
REFERENCES:
patent: 5155422 (1992-10-01), Sidman et al.
patent: 5296790 (1994-03-01), Fincher
patent: 5404253 (1995-04-01), Painter
patent: 5459381 (1995-10-01), Itoh
patent: 5952804 (1999-09-01), Hamamura et al.
patent: 6314473 (2001-11-01), Singer et al.
patent: 6339512 (2002-01-01), Sri-Jayantha et al.
patent: 6487028 (2002-11-01), Sri-Jayantha et al.
patent: 6560658 (2003-05-01), Singer et al.
patent: 6876168 (2005-04-01), Luo et al.
patent: 6936990 (2005-08-01), Oyama et al.
patent: 6940685 (2005-09-01), Chrappan Soldavini et al.
patent: 7050257 (2006-05-01), Maiocchi et al.
patent: 7292403 (2007-11-01), Baek et al.
patent: 2001/0003497 (2001-06-01), Takaishi
patent: 2002/0109932 (2002-08-01), Aikawa et al.
patent: 2003/0133218 (2003-07-01), Guo et al.
patent: 2006/0072392 (2006-04-01), Semba et al.
patent: 1 643 491 (2006-04-01), None
patent: 7-50075 (1995-02-01), None
patent: 2000-21104 (2000-01-01), None
Bickel et al.; “Disturbance Observer Based Hybrid Impedance Control”; Proceedings of the American Control Conference; 1994; pp. 729-733.
Bickel R., et al: “Hybrid Impedance Control in Constraint Coordinates Using a Disturbance Observer.” Dec. 11, 1996, Proceedings of the 35thIEEE Conference on Decision and Control, Kobe, Japan Dec. 11-13, 1996, New York, NY, USA, IEEE, US, pp. 1974-1979, ISBN: 0-7803-3590-2.
Fujitsu Limited
Greer Burns & Crain Ltd.
Leykin Rita
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